CN105060680B - One kind can continue pushing-type molybdenum electrode cooling jacket - Google Patents
One kind can continue pushing-type molybdenum electrode cooling jacket Download PDFInfo
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- CN105060680B CN105060680B CN201510478176.2A CN201510478176A CN105060680B CN 105060680 B CN105060680 B CN 105060680B CN 201510478176 A CN201510478176 A CN 201510478176A CN 105060680 B CN105060680 B CN 105060680B
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Abstract
The present invention relates to one kind can continue pushing-type molybdenum electrode cooling jacket, include the intermediate plate of outer tube, the end plate of annular, the tailgate of annular and annular；Inside outer tube, equipped with water inlet pipe, outlet pipe, blast pipe, discharge pipe；In region between end plate and intermediate plate, outer tube is internally provided with the jackshaft of the partition board of open column shape, open column shape, and outer tube, partition board and jackshaft are set from outside to inner coaxial；The lateral wall of jackshaft is equipped with helical form cooling water channel, and helical form cooling water channel is integrally formed with jackshaft；Air buffer is formed between partition board and outer tube, end plate cooling water channel is equipped between end plate and jackshaft, the water inlet of end plate cooling water channel is connected with the water outlet of cooling water channel, and the water outlet of end plate cooling water channel is connected with the water inlet of outlet pipe；The thermocouple of detection header plate temperature is additionally provided with inside air buffer.The present invention has many advantages, such as that heat transfer is good, deformation is small, corrosion-resistant and can run reliably and with long-term.
Description
Technical field
The present invention relates to a kind of cooling device more particularly to a kind of molybdenum electrode cooling jackets of continuous pushing-type electric boosting equipment.
Background technology
Glass under molten condition is conductive.So-called electric glass melting refers to electric current being introduced into glass metal by electrode,
Interelectrode glass metal generates Joule heat under the action of alternating current after energization, so as to achieve the purpose that fusing and temperature adjustment.Electricity helps
It is molten to refer to heating applied to traditional fuel (natural gas, heavy oil and petroleum coke powder etc.) using electric glass melting as auxiliary heating means
Cell furnace in.General electric boosting is used to melt the glass metal of 10%-40% in cell furnace.
Commonly used to have graphite, molybdenum and tin oxide etc. as the electrode material of electric glass melting.Molybdenum electrode is most common electricity
One of pole material, near the melting end or fining end, weir available for glass furnace, dog-hole, distribution material path and supply channel etc.
Position.Metal molybdenum is under 500 DEG C -600 DEG C and higher temperature, will be rapid if working under air or any oxidizing atmosphere
It is aoxidized.
It can take that side is inserted, bottom is inserted or top-insertion type structure, while is designed to continue and be pushed away for the molybdenum electrode of glass furnace
Or the form pushed away can not be continued.The shape of molybdenum electrode is generally configured to cylindrical type.Through practice test, the cylinder of continuous push operation can be carried out
The electrode of type preferably, has obtained the most commonly used application of industry.
Molybdenum electrode cooling jacket is usually made of heat safe stainless steel, common to have 310 (composition is 0Cr25N i 20)
Wait the stainless steel of the trades mark.At high temperature (about 1100 DEG C -1300 DEG C, iron (Fe) meeting and glass in molybdenum electrode cooling jacket material
Silicon (S i) in glass liquid is reacted, and forms the Fe-S i of liquid phase, destroys the intensity of molybdenum electrode cooling jacket.This to use
The service life for the molybdenum electrode cooling jacket that usual method makes shortens dramatically.
Molybdenum electrode cooling jacket cools down molybdenum electrode using the principle of thermal conduction study, and the most commonly used is liquid biographies
Heat.Liquid heat transfer has many advantages, such as localized heat transfer, high heat capacity, high heat conductance.Liquid heat transfer is directed to same △ T, heat flux
Compare high, thus the requirement for △ T is greatly lowered.Liquid using liquid heat transfer as principle cools down, and has that thermal characteristics is good, noise
Low, component can be with advantages such as close fits.Liquid media usually as cooling is softened water, at low cost, easy care
The advantages that.But since unreasonable cooling water pipeline design makes molybdenum electrode cooling jacket still have following defect, such as：
Common cooling water pipeline design, because using under hot environment (environment temperature is up to 900 DEG C -1300 DEG C), if designing or making
With improper, easily occur that cooling water pipeline bursts apart or internal incrustation results in blockage.This proposes the design of cooling water pipeline high
Requirement.The prevention of deformation under the design of heat transfer of cooling water, cooling water pipeline high temperature, steam explosion (Steam Shock) are prevented, are cold
But all it is abnormal phenomenon that is common in current molybdenum electrode cooling jacket design and must preventing the problems such as the anti-corrosion of water lines.
Invention content
In order to avoid or the current most of molybdenum electrode cooling jackets designs of prevention present in defect so that molybdenum electrode cools down
Water jacket heat transfer is good, deformation is small, corrosion-resistant and can run reliably and with long-term, and the present invention provides one kind can continue pushing-type molybdenum electrode
Cooling jacket, by it is provided by the invention continue pushing-type molybdenum electrode cooling jacket and can be well realized sky is exposed to molybdenum electrode
Part in gas is cooled down.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
One kind can continue pushing-type molybdenum electrode cooling jacket, the centre of annular being internally provided with including outer tube and outer tube
Plate；The top of outer tube is equipped with the end plate of annular, and the sky being sleeved in outer tube is equipped in the region between end plate and intermediate plate
The jackshaft of the columnar partition board of the heart and the open column shape being sleeved in the partition board of open column shape；Shape between the outer tube and partition board
Into air buffer；The lateral wall of the jackshaft is equipped with helical form cooling water channel；There are end plates between the end plate and jackshaft
Cooling water channel, the end plate cooling water channel are connected with the helical form cooling water channel.
The beneficial effects of the invention are as follows：The present invention is by the reasonable setting to molybdenum electrode cooling jacket, by conducting heat water
Molybdenum electrode temperature in set is reduced within 500 DEG C, and run reliably and with long-term.Advantageous effect is in particular in following side
Face：
1) present invention creatively proposes and there is provided end plate cooling water channels.By setting end plate cooling water at end plate
Road considerably reduces the most hot component of molybdenum electrode cooling jacket --- and the temperature of end plate, temperature is from about 600-800 before
DEG C, about 410-550 DEG C can be reduced to.Meanwhile erosion resisting is greatly enhanced with the reduction of temperature.
2) by setting helical form cooling water channel in the outer surface of jackshaft, the steady in a long-term of molybdenum electrode is preferably realized
And the cooling of high reliability.
3) in air buffer, a certain amount of cooling air is passed to, outer tube is cooled down inside water jacket, cooling is equal
It is even reliable and dangerous over the ground without molybdenum electrode.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the bottom end of the outer tube is equipped with the tailgate of annular；Axially inside being equipped with for the jackshaft can be held
Receive the cavity of molybdenum electrode, molybdenum electrode sequentially pass through the end plate of the annular, the jackshaft of open column shape, annular intermediate plate and ring
The tailgate of shape；
On the inside of outer tube, axial arranged there are water inlet pipe, outlet pipe, blast pipe, discharge pipe along its；The water inlet pipe into
The mouth of a river, the water outlet of outlet pipe, the air inlet of blast pipe, discharge pipe air outlet both pass through annular tailgate；The water inlet pipe
Water outlet be connected with the water inlet of helical form cooling water channel, the water inlet of outlet pipe and the water outlet phase of end plate cooling water channel
Even；The air buffer that the air outlet of the blast pipe and the air inlet of discharge pipe are formed between the partition board and outer tube respectively
Inside connection；
The outer tube, partition board and jackshaft coaxial arrangement；The madial wall of the partition board and the lateral wall of jackshaft are tight
Closely connected conjunction is closed, and the helical form cooling water channel that the lateral wall of the jackshaft is equipped with is integrally formed with jackshaft；Helical form cools down
Water channel water inlet is located at the bottom end of the helical form cooling water channel, and helical form cooling water channel water outlet is located at helical form cooling
The top of water channel；The helical form cooling water channel water outlet is connected with the water inlet of end plate cooling water channel；
Thermocouple is additionally provided with inside air buffer, the interior of the end plate is inserted into one end of the detection temperature of the thermocouple
Portion, the other end of the thermocouple are stretched out outside tailgate.
Taking the advantageous effect of above-mentioned further technical solution is：
1) tailgate of the present invention is used for cooling water pipe and cooling duct and thermocouple well being fixed under electrode water jacket
End, since the kiln pool wall or bottom construction of different engineerings propose the length of molybdenum electrode different requirements, by centre
Length adjustment between plate and tailgate can meet the needs of different engineerings are to molybdenum electrode water jacket.
2) by the outer surface of jackshaft setting helical form cooling water channel and the helical form cooling water channel and centre
Axis is integrally formed, and preferably realizes the cooling steady in a long-term and high reliability of molybdenum electrode:On the one hand, the present invention is in jackshaft
On mill out helical form cooling water channel, directly and jackshaft body contacts, heat-transfer effect will be far better than using cooling water for cooling water
Pipe is welded on jackshaft；On the other hand, the problem of having well solved expanded by heating deformation, stainless steel cooling pipe road is welded on
It on jackshaft, will necessarily be widely varied with temperature, the deformation of the cooling water pipeline brought, in fact, during welding, have
The deformation of first time, and also as annealing, generates the internal stress of metal, and this bright described helical form cooling water channel is fine
Ground solves this problem.
3) temperature inside end plate is monitored at any time by thermocouple.
4) under fortuitous event, the Severe blockage of unrepairable occurs for helical form cooling water channel, at this point, stop ventilation, it will be former
The discharge pipe of cooling wind as water inlet pipe, using the blast pipe of former cooling wind as outlet pipe, carry out the cooling water under fortuitous event
Set operation, it is easy to operation；And molybdenum electrode cooling jacket of the prior art is needed when encountering such situation by molybdenum electrode
Cooling jacket and molybdenum electrode carry out integral replacing.
5) in order to which the temperature of molybdenum electrode cooling jacket outer wall is down within 600 DEG C, so as to strong in enhancing stainless steel
Its oxidation at high temperature is slowed down while spending well, molybdenum electrode cooling jacket installation site needs to carry out using air hose cold
But.Since cooling jacket charges in itself, the air hose of outside installation is while close to cooling jacket, it is also noted that itself and water jacket
Insulation.
In existing technology, at the refractory material of cooling water channel installation position, a bigger hole, molybdenum electrode have been opened
Water jacket heart position installed therein, since electrode water jacket outer wall needs to cool down, surrounding space position needs to place one very thin
Copper or stainless steel cooling duct.Cooling duct is ground connection in itself, and electrode water jacket needs and the earth keeps insulation；Air hose
Be within close proximity, but cannot contact with water jacket, the difficulty of installation operation it is bigger and also cooling insulation effect it is undesirable.
It is of the present invention to continue pushing-type molybdenum electrode cooling jacket, cooling wind is changed to molybdenum electrode water jacket internal flow, only
The hose of insulation need to be connected on to the cooling wind blast pipe and discharge pipe of molybdenum electrode cooling jacket, thus achieved cold well
But and insulation effect, while there is installation, easy to operate.
6) cooling water uses the design of bottom in and top out so that heat exchange, which is gradually stablized, to be completed, and improves cooling efficiency.Together
When, the structure of screw type can make electrode water jacket cool down more uniform in electrode surrounding.
Further, the air outlet of the blast pipe is located at the top of air buffer, and the air inlet of the discharge pipe is located at sky
The bottom of air-casing.
Advantageous effect using above-mentioned further scheme is：The present invention is cold to emphasis by the way of cooling wind upper entering and lower leaving
But position is cooled down.Water is 0.62W/mK in 30 DEG C of thermal conductivity factor λ, and air is 0.024W/ in 0 DEG C of thermal conductivity factor λ
MK is 0.031W/mK in 100 DEG C of thermal conductivity factor λ, and 20-25 times of the two difference, the i.e. cooling effect of air are comparatively
It is very soft.Air cooled keypoint part is the higher place of molybdenum electrode cooling jacket outer wall upper temp, prevents stainless
The decline of steel outer wall mechanical strength.For example, under room temperature, 304,310, the mechanical property of 316L be close.Under high temperature, 304 are not
The peak stress of rust steel, with the raising of temperature, drastically declines.In the range of 300 DEG C -950 DEG C, the tensile strength of stainless steel is in
It linearly reduces rapidly, 392.12MPa during by 300 DEG C, 30.18MPa when being down to 950 DEG C.
Further, the part of tailgate, the part of outlet pipe stretching tailgate, blast pipe stretching are stretched out in the water inlet pipe respectively
The part setting of tailgate is stretched out for detecting the platinum resistance thermometer sensor, of temperature in the part of tailgate, discharge pipe.
Advantageous effect using above-mentioned further scheme is：By the setting of platinum resistance thermometer sensor, cooling water can be monitored on-line
And cooling wind disengaging cooling jacket when temperature and its variation.It, can be with process for stabilizing by the adjusting and management to its stability
Condition.Meanwhile it by temperature change and operating flux, can also carry out the accurate calculating of cooling jacket heat and power.
Further, the peripheral side of the tailgate is detachably connected with outer tube.
Advantageous effect using above-mentioned further scheme is：It is easy to disassemble, while be conveniently adjusted between tailgate and intermediate plate
Distance.
Further, the helical form cooling water channel groove trapezoidal for cross section.
Advantageous effect using above-mentioned further scheme is：On the one hand, it on the basis of uniform cooling, successfully avoids
The fouling of helical form cooling water channel and the generation of corrosion；On the other hand, the groove can by jackshaft Milling Machining form,
Helical form cooling water channel is directly and jackshaft body contacts, heat-transfer effect will be far better than using cooling water pipe to be welded on jackshaft
On.
Further, the duty ratio of the helical form cooling water channel is 10%-50%.
Advantageous effect using above-mentioned further scheme is：By the design of rational duty ratio, in the base uniformly cooled down
On plinth, the generation of the fouling of helical form cooling water channel and corrosion is successfully avoided.
Further, the cross-sectional area of the helical form cooling water channel is 50-1000 square millimeters.
Advantageous effect using above-mentioned further scheme is：By the design of rational cooling water channel cross-sectional area, equal
On the basis of even cooling, the generation of the fouling of helical form cooling water channel and corrosion is successfully avoided.
The present invention does not have by the setting of the cross-sectional shape of above-mentioned helical form cooling water channel, cross-sectional area and duty ratio
When big pipe resistance and cooling water channel water (flow) direction are turned back caused by having the cooling water channel zigzag motion of traditional design, cooling water
Flow excessively washing away to cooling water channel tube wall part.On the one hand cooling water channel design of the prior art increases pipe resistance, another
Aspect causes equipment slight but lasting injury；In comparison, helical form cooling water channel of the present invention, it is no matter cold
But the flowing of water or the transmission of heat are all uniform and stable in the surrounding of jackshaft and direction from top to bottom.
Further, the material of the outer tube, partition board, jackshaft, end plate and intermediate plate is high temperature resistant stainless steel material.
Advantageous effect using above-mentioned further scheme is：In addition to tailgate, other components may contact high temperature (for example,
Cut off the water supply die in the case of), therefore select high temperature resistant stainless steel material, at least 310 materials (20Cr25Ni20), it is preferable that
Using 316L materials (022Cr17Ni 12Mo2), because it contains the Mo of 2.0%-3.0%, and phosphorus content is lower, in equal conditions
Under, corrosion resistance is stronger；More preferably, using low-carbon and can also be contained according to the aggressivity and temperature in use of glass metal in kiln
The possibility of molybdenum amount (3.0%-4.0%) higher 317L.
316 materials：Ingredient is 06Cr17Ni 12Mo2, and because adding Mo, therefore its corrosion resistance, atmospheric corrosion resistance and high temperature are strong
Spend it is especially good, can it is severe it is cruel under conditions of use；Processing hardening is excellent (nonmagnetic).In seawater with equipment, chemistry, dyestuff, make
The production equipments such as paper, oxalic acid, fertilizer；Photograph, food industry, coastal area facility, rope, CD bars, bolt, nut.
316L materials：Ingredient is 022Cr17Ni 12Mo2, low-carbon, as the low C series of 316 steel grades, except having with 316 steel
Outside identical characteristic, anti-grain boundary corrosion is excellent.In the purposes of 316 steel, confrontation grain boundary corrosion has the product of special requirement.
The 316L materials of low-carbon and addition molybdenum, high temperature resistant and corrosion resistance are good, in good electrode water jacket structure design
Under and normal running environment under, can ensure that electrode water jacket has the service life of at least 10 years.
Description of the drawings
Fig. 1 is the radial structure schematic diagram of the present invention for continuing pushing-type molybdenum electrode cooling jacket；
Fig. 2 is diagrammatic cross-section (wherein, the cooling water of the present invention for continuing pushing-type molybdenum electrode cooling jacket at A-A
Road cut-away section)；
Fig. 3 is diagrammatic cross-section (wherein, the cooling water of the present invention for continuing pushing-type molybdenum electrode cooling jacket at B-B
Road cut-away section)；
Fig. 4 (denotes cooling water for the diagrammatic cross-section of the present invention for continuing pushing-type molybdenum electrode cooling jacket at A-A
The center line 21 in road)；
Fig. 5 (denotes cooling tube for the diagrammatic cross-section of the present invention for continuing pushing-type molybdenum electrode cooling jacket at B-B
The center line 21 of water channel)；
Fig. 6 is the cross-sectional structure schematic diagram of cooling water channel；
Fig. 7 is used for the apparatus structure schematic diagram of first group of experiment；
Fig. 8 is used for the apparatus structure schematic diagram of first group of experiment；
Fig. 9 is used for the apparatus structure schematic diagram of first group of experiment.
In attached drawing, parts list represented by the reference numerals are as follows：
1st, molybdenum electrode, 2, end plate, 3, thermocouple, 4, air buffer, 5, cooling water channel, 6, outer tube, 7, intermediate plate, 8, tail
Plate, the 9, first platinum resistance thermometer sensor, the 10, second platinum resistance thermometer sensor, 11, third platinum resistance thermometer sensor, the 12, the 4th platinum resistance thermometer sensor,；13rd, water inlet pipe,
14th, outlet pipe, 15, discharge pipe, 16, blast pipe, 17, jackshaft, 18, end plate cooling water channel, 19, partition board, 20, heating unit,
21st, cooling water channel center line.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figures 1 to 6, one kind can continue pushing-type molybdenum electrode cooling jacket, including being set inside outer tube 6 and outer tube 6
The intermediate plate 7 of some annulars；The top of outer tube 6 is equipped with the end plate 2 of annular, is set in the region between end plate 2 and intermediate plate 7
There are the partition board 19 for the open column shape being sleeved in outer tube 6 and the jackshaft for the open column shape being sleeved in the partition board 19 of open column shape
17；Air buffer 4 is formed between the outer tube 6 and partition board 19；The lateral wall of the jackshaft 17 is equipped with helical form cooling water
Road 5；There are end plate cooling water channel 18, the end plate cooling water channel 18 and the helical forms between the end plate 2 and jackshaft 17
Cooling water channel 5 connects.
6 bottom end of outer tube is equipped with the tailgate 8 of annular；Axially inside being equipped with for the jackshaft 17 can accommodate molybdenum electricity
The cavity of pole 1, molybdenum electrode 1 sequentially pass through the end plate 2 of the annular, the jackshaft 17 of open column shape, annular intermediate plate 7 and ring
The tailgate 8 of shape；
On the inside of outer tube, axial arranged there are water inlet pipe 13, outlet pipe 14, blast pipe 16, discharge pipe 15 along its；It is described into
The water inlet of water pipe 13, the water outlet of outlet pipe 14, the air inlet of blast pipe 16, discharge pipe 15 air outlet both pass through annular
Tailgate 8；The water outlet of the water inlet pipe 13 is connected with the water inlet of helical form cooling water channel 5, the water inlet of outlet pipe 14 and end
The water outlet of plate cooling water channel 18 is connected；The air outlet of the blast pipe 16 and the air inlet of discharge pipe 15 respectively with the partition board
The inside of air buffer 4 formed between 19 and outer tube 6 connects；
The outer tube 6, partition board 19 and jackshaft 17 are coaxially disposed；The madial wall of the partition board 19 and jackshaft 17
Lateral wall fit closely it is closed, the helical form cooling water channel 5 that the lateral wall of the jackshaft 17 is equipped with and 17 one of jackshaft into
Type, it is preferable that cooling water channel 5 can be gone out in the outer surface Milling Machining of jackshaft 17；Helical form cooling water channel water inlet is located at institute
The bottom end of helical form cooling water channel 5 is stated, helical form cooling water channel water outlet is located at the top of the helical form cooling water channel 5；Institute
The water outlet for stating helical form cooling water channel 5 is connected with the water inlet of end plate cooling water channel 18；
Thermocouple 3 is additionally provided in the inside of air buffer 4, the end is inserted into one end of the detection temperature of the thermocouple 3
The inside of plate 2, the other end of the thermocouple 3 are stretched out outside tailgate 8.
The air outlet of the blast pipe 16 is located at the top of air buffer 4.
The air inlet of the discharge pipe 15 is located at the bottom of air buffer 4.
It is stretched out respectively in the part of the water inlet pipe 13 stretching tailgate, the part of the stretching tailgate of outlet pipe 14, blast pipe 16
The part of tailgate is stretched out equipped with the platinum resistance thermometer sensor, for detecting temperature, respectively the 4th platinum thermoelectricity in the part of tailgate, discharge pipe 15
Resistance 12, third platinum resistance thermometer sensor, 11, the first platinum resistance thermometer sensor, 9, the second platinum resistance thermometer sensor, 10.
The peripheral side of the tailgate 8 is detachably connected with outer tube 6.The peripheral side of intermediate plate 7 and outer tube 6 are welded on one
It rises.In a particular application, outer tube is made of two parts, and respectively the outer layer tube portion of more than 7 intermediate plate and intermediate plate are below 7
Outer layer tube portion；This two parts are integrally welded with intermediate plate 7 respectively.
Outer layer tube portion of the intermediate plate below 7, can be designed to a serial different length, respectively with identical centre
The outer layer tube portion of more than 7 plate is welded, and forms the molybdenum electrode cooling jacket finished product of different length, and realizes quick group
Dress.
The helical form cooling water channel 5 groove trapezoidal for cross section.In being distributed in of the groove uniform spiral formula
The outer surface of countershaft 17, the cross section refer to edge and cooling water channel center line 21 it is perpendicular plane interception.Milling can be passed through
The method of processing mills out spiral helicine groove in the outer surface of jackshaft, and the cross section of groove is inverted trapezoidal.
In addition to tailgate 8, other component selects high temperature resistant stainless steel 316L materials as material, the outer tube 6, partition board
19th, the material of jackshaft 17, end plate 2 and intermediate plate 7 is high temperature resistant stainless steel material.
The duty ratio of the cooling water channel 5 is 10%-50%.Duty ratio of the present invention is referred in jackshaft axial direction
On direction, the sectional area of cooling water channel accounts for the percentage of two neighboring water channel centreline space total sectional area.
50-1000 square millimeters of the cross-sectional area of the cooling water channel 5.
Embodiment
Carry out three groups of experiments simultaneously to carry out verifying the cooling effect of the present invention for continuing pushing-type molybdenum electrode cooling jacket
Fruit and the performance of different operating mode.Fig. 7 to Fig. 9 is respectively the structural representation of used device when three groups of experiments carry out
Scheme, be used only as signal and use, wherein Fig. 7 is first group of experiment reference molybdenum electrode cooling jacket used but does not draw inside it in detail
Structure, Fig. 8 and Fig. 9 are simultaneously not drawn into molybdenum electrode cooling jacket intermediate plate to tailgate portion.
First group, the molybdenum electrode cooling jacket (model EH-15-2 " -1600) produced using Huo En glass industry corporations.
Second group, continue pushing-type molybdenum electrode cooling jacket using of the present invention, and in normal mode of operation (i.e. into
For intaking, outlet pipe is used to be discharged water pipe).The design parameter of the present invention for continuing pushing-type molybdenum electrode cooling jacket is such as
Under：The duty ratio of helical form cooling water channel be 20%, helical form cooling water channel internal diameter be 60mm, helical form cooling water channel it is equivalent
Outer diameter is 80mm, and the helical groove of helical form cooling water channel is 6 circles；The cross section of helical form cooling water channel is in inverted ladder
Shape, upper bottom width 14mm, bottom width are 8.7mm, a height of 10mm, Zhou Changwei 42.7mm, cross-sectional area 113.5mm2；Phase
The intermarginal vertical range in trapezoidal upper bottom edges of two circle of neighbour is 36mm, the intermarginal vertical range in the trapezoidal bottoms of two adjacent rings
For 41.3mm；Trapezoidal bottom and the distance of the inner wall of jackshaft are 5mm, and the thickness of partition board 19 is 5mm.
Third group continues pushing-type molybdenum electrode cooling jacket using of the present invention, simulate under emergency rating (such as cool down
Water channel blocks) former blast pipe 16 is passed through cooling water, while former discharge pipe 15 is used as water outlet.Other parameter is the same as described in second group
The parameter for continuing pushing-type molybdenum electrode cooling jacket.
Electric-heating-wire-heating device, the electric-heating-wire-heating device are installed into the surface of three groups of molybdenum electrode cooling jackets respectively
It is sleeved in molybdenum electrode, the distance of the lower edge of electric-heating-wire-heating device apart from the top of end plate is L, and L is 30mm in experiment.
The power of heating unit is adjusted, the temperature for keeping 20 internal thermocouples TH of heating unit is 500 DEG C, and entering coolant-temperature gage is
30℃。
Using three platinum resistance thermometer sensor,s, (specific location can join at same location inside measurement molybdenum electrode cooling jacket respectively
See Fig. 7 to Fig. 9) temperature, respectively T1, T2, T3, every group of experiment carry out five repetitions.
Keep constant 3 kilograms of the pressure (1 kilogram of pressure=0.1Mpa) of cooling water, under this constant pressure, table after testing
Bright, the cooling water flow of first group of molybdenum electrode cooling jacket is 553L/mi n, the cooling flow of second group of molybdenum electrode cooling jacket
It is 657L/mi n to measure as the cooling water flow of 615L/mi n, third group molybdenum electrode cooling jacket.Cooling can also suitably be adjusted
Such as 3.0-4.5 kilograms of the pressure of water.
Measurement data is as shown in table 1 to table 3：
Table 1：The testing result of first group of molybdenum electrode cooling jacket
Table 2：The testing result of second group of molybdenum electrode cooling jacket
Table 3：The testing result of the molybdenum electrode cooling jacket of third group
Numerical value after T1, T2, T3 convert when in table 4 correspond to temperature when water jacket works in 1200 DEG C of top respectively, is changed
The formula of calculation is：T1200=(T500- 30) × (1200-30)/(500-30)+30, wherein, T1200Represent be converted into heating temperature as
Each section temperature of molybdenum electrode cooling jacket under the conditions of 1200 DEG C；T500Heating temperature is represented as the molybdenum electrode under the conditions of 500 DEG C
Each section temperature of cooling jacket detection.
Table 4：Corresponding water jacket works in temperature during 1200 DEG C of top
Inventor has adjusted parameter again, such as：
(1) design parameter of the present invention for continuing pushing-type molybdenum electrode cooling jacket is adjusted, cooling water channel
Duty ratio is 10%, while its cross-sectional area of cooling water channel is 50 square millimeters；The normal mode of operation under 500 DEG C of heating conditions
Measurement result it is as shown in table 5.Table 6 is each section result being converted under 1200 DEG C of heating conditions.
The measurement result of the present invention for continuing pushing-type molybdenum electrode cooling jacket of table 5
Table 6 is converted into each section result under 1200 DEG C of heating conditions
(2) design parameter of the present invention for continuing pushing-type molybdenum electrode cooling jacket is adjusted, cooling water channel
Duty ratio is 50%, while helical form cooling water channel its cross-sectional area is 1000 square millimeters, helical form cooling water channel it is transversal
Face is in inverted trapezoidal, and trapezoidal upper bottom width is 35mm, and lower bottom width is 27.5mm, is highly 16mm, in cooling water channel two adjacent rings
Distance between heart line is 62.5mm；The measurement result of normal mode of operation is as shown in table 7 under 500 DEG C of heating conditions.Table 8 is changes
Each section result being counted as under 1200 DEG C of heating conditions.
The measurement result of the present invention for continuing pushing-type molybdenum electrode cooling jacket of table 7
Table 8 is converted into each section result under 1200 DEG C of heating conditions
After above-mentioned adjustment, experimental result like before is obtained.
In conclusion compared with existing molybdenum electrode cooling jacket, it is of the present invention to continue pushing-type molybdenum electrode cooling water
Set has many advantages, such as.
1) present invention uses the design of helical form cooling water channel, when cooling water flows wherein, without dog leg, pipe resistance compared with
It is small, good cooling results.In an experiment, it can be seen that same pressure of supply water, two kinds of water jackets, the flow of water is in the case of three kinds
It is different.
2) cooling water channel is milled out on jackshaft, it is advantageous at two aspects than welding cooling water pipe：One is to radiate more
It is good, the other is because material expand coefficient is different and welds situation and will not be generated unnecessary in temperature change dramatically
Deformation even generates leakage.
3) the outside air interlayer of the present invention for continuing pushing-type molybdenum electrode cooling jacket so that we may not necessarily be
Air hose cooling is carried out outside water jacket.On the one hand reduce outside to internal heat transfer, save energy, on the other hand, keep away
The generation of electrode that air hose and outer tube body are collided and caused abnormal conditions over the ground is exempted from.
4) when inner ring helical form cooling water channel because cooling water quality is not up to standard, when blocking, under conventional situation, electric boosting
Heating needs to stop, and needs to carry out the replacement of cooling jacket in time.The present invention can continue pushing-type molybdenum electrode cooling jacket and at this time may be used
Water jacket need not be replaced, the cooling wind of air buffer is stopped, switching to cooling water can continue to run with.
5) design of four platinum resistance thermometer sensor,s so that the mobility status of cooling water can be monitored on-line.When water flow is constant,
If disengaging water temperature difference increases, illustrate that this circuit cooling water channel has happening for fouling or blocking, this situation can be closed
Note, and scheme of arrangement is overhauled.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (8)
1. one kind can continue pushing-type molybdenum electrode cooling jacket, which is characterized in that including being set inside outer tube (6) and outer tube (6)
The intermediate plate (7) of some annulars；The top of outer tube (6) is equipped with the end plate (2) of annular, between end plate (2) and intermediate plate (7)
Region in be equipped with the partition board (19) of open column shape being sleeved in outer tube (6) and be sleeved in the partition board (19) of open column shape
The jackshaft (17) of open column shape；Air buffer (4) is formed between the outer tube (6) and partition board (19)；The jackshaft
(17) lateral wall is equipped with helical form cooling water channel (5)；There are end plate cooling water channels between the end plate (2) and jackshaft (17)
(18), the end plate cooling water channel (18) connects with the helical form cooling water channel (5)；The helical form cooling water channel (5) with
Jackshaft (17) is integrally formed；The helical form cooling water channel (5) groove trapezoidal for cross section；Outer tube (6) bottom
Tailgate (8) of the end equipped with annular；The jackshaft (17) is axially inside equipped with the cavity that can accommodate molybdenum electrode (1), molybdenum electricity
Pole (1) sequentially passes through the tail of the end plate (2) of the annular, the jackshaft (17) of open column shape, the intermediate plate (7) of annular and annular
Plate (8)；
On the inside of outer tube, axial arranged there are water inlet pipe (13), outlet pipe (14), blast pipe (16), discharge pipe (15) along its；Institute
State the air outlet of the water inlet of water inlet pipe (13), the water outlet of outlet pipe (14), the air inlet of blast pipe (16), discharge pipe (15)
Both pass through the tailgate (8) of annular；The water outlet of the water inlet pipe (13) is connected with the water inlet of helical form cooling water channel (5), goes out
The water inlet of water pipe (14) is connected with the water outlet of end plate cooling water channel (18)；The air outlet and discharge pipe of the blast pipe (16)
(15) inside of air buffer (4) that air inlet is formed between the partition board (19) and outer tube (6) respectively connects；
The outer tube (6), partition board (19) and jackshaft (17) coaxial arrangement；The madial wall and jackshaft of the partition board (19)
(17) lateral wall fit closely it is closed, the helical form cooling water channel (5) that the lateral wall of the jackshaft (17) is equipped with it is intermediate
Axis (17) is integrally formed；Helical form cooling water channel water inlet is located at the bottom end of the helical form cooling water channel (5), helical form cooling
Water channel water outlet is located at the top of the helical form cooling water channel (5)；The helical form cooling water channel water outlet is cooled down with end plate
The water inlet of water channel (18) is connected；
Thermocouple (3) is additionally provided with inside air buffer (4), the end is inserted into one end of the detection temperature of the thermocouple (3)
The inside of plate (2), the other end of the thermocouple (3) stretch out tailgate (8) outside.
2. one kind can continue pushing-type molybdenum electrode cooling jacket according to claim 1, which is characterized in that the blast pipe (16)
Air outlet is located at the top of air buffer (4).
3. one kind can continue pushing-type molybdenum electrode cooling jacket according to claim 2, which is characterized in that the discharge pipe (15)
Air inlet is located at the bottom of air buffer (4).
4. one kind can continue pushing-type molybdenum electrode cooling jacket according to claim 3, which is characterized in that respectively in the water inlet pipe
(13) part of tailgate is stretched out, outlet pipe (14) stretches out the part of tailgate, blast pipe (16) stretches out the part of tailgate, discharge pipe
(15) part of tailgate is stretched out equipped with the platinum resistance thermometer sensor, for detecting temperature.
5. one kind can continue pushing-type molybdenum electrode cooling jacket according to claim 4, which is characterized in that outside the tailgate (8)
Side is detachably connected with outer tube (6).
6. pushing-type molybdenum electrode cooling jacket can be continued according to the described one kind of any one of claim 1-5, which is characterized in that the spiral
The duty ratio of shape cooling water channel (5) is 10%-50%.
7. pushing-type molybdenum electrode cooling jacket can be continued according to the described one kind of any one of claim 1-5, which is characterized in that the spiral
The cross-sectional area of shape cooling water channel (5) is 50-1000 square millimeters.
8. pushing-type molybdenum electrode cooling jacket can be continued according to the described one kind of any one of claim 1-5, which is characterized in that the outer layer
Pipe, partition board, jackshaft, end plate and intermediate plate material be high temperature resistant stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478176.2A CN105060680B (en) | 2015-08-06 | 2015-08-06 | One kind can continue pushing-type molybdenum electrode cooling jacket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478176.2A CN105060680B (en) | 2015-08-06 | 2015-08-06 | One kind can continue pushing-type molybdenum electrode cooling jacket |
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| CN105060680B true CN105060680B (en) | 2018-06-08 |
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| CN201510478176.2A Expired - Fee Related CN105060680B (en) | 2015-08-06 | 2015-08-06 | One kind can continue pushing-type molybdenum electrode cooling jacket |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145610B (en) * | 2016-07-01 | 2018-11-16 | 东南大学 | Continuous basalt fiber tank furnace packaged type electrode assembly and its replacing options |
| CN107805832A (en) * | 2017-11-30 | 2018-03-16 | 浙江新瑞欣精密线锯有限公司 | A kind of actinobacillus device of scroll saw processing |
| CN110357397A (en) * | 2019-07-09 | 2019-10-22 | 东旭科技集团有限公司 | Electric boosting cooling jacket |
| CN113105101A (en) * | 2021-04-30 | 2021-07-13 | 河北光兴半导体技术有限公司 | Electric boosting cooling water jacket |
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| US2877282A (en) * | 1957-01-07 | 1959-03-10 | Howard H Cook | Water cooled electrode holders |
| US3777040A (en) * | 1973-04-25 | 1973-12-04 | Toledo Eng Co Inc | Protection of glass melting furnace electrode |
| CN2069638U (en) * | 1990-04-21 | 1991-01-16 | 张玉祥 | Water-cooling complex electrode |
| CN201491310U (en) * | 2009-08-21 | 2010-05-26 | 武汉力诺太阳能集团股份有限公司 | Electrode water jacket |
| CN202281495U (en) * | 2011-09-13 | 2012-06-20 | 上海开隆冶金机械制造有限公司 | Spiral water-cooled copper sleeve for bottom electrode of electric furnace |
| CN103922562A (en) * | 2014-04-11 | 2014-07-16 | 抚顺科盛霞石微晶材料设备制造有限公司 | Electrode cooler for bottom-plug electrode melting furnace |
| CN103979780A (en) * | 2014-06-05 | 2014-08-13 | 秦皇岛玻璃工业研究设计院 | Device and method for protecting molybdenum electrode to prevent electrode brick form explosion |
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|---|---|---|---|---|
| US2877282A (en) * | 1957-01-07 | 1959-03-10 | Howard H Cook | Water cooled electrode holders |
| US3777040A (en) * | 1973-04-25 | 1973-12-04 | Toledo Eng Co Inc | Protection of glass melting furnace electrode |
| CN2069638U (en) * | 1990-04-21 | 1991-01-16 | 张玉祥 | Water-cooling complex electrode |
| CN201491310U (en) * | 2009-08-21 | 2010-05-26 | 武汉力诺太阳能集团股份有限公司 | Electrode water jacket |
| CN202281495U (en) * | 2011-09-13 | 2012-06-20 | 上海开隆冶金机械制造有限公司 | Spiral water-cooled copper sleeve for bottom electrode of electric furnace |
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